There are a couple things you'll want to straighten out. One is that WebView is misconfigured. To fix that, follow these steps:

1) In Fetch, connect to the server and go to the presskit folder
2) Make sure no file is selected
3) While holding down the Option key, click the WebView button
4) It should ask you for a web address. Enter:

Once you do that, the WebView button and Copy Web Address command should work. To test it, select one of the newsletter HTML files and click WebView; the newsletter should appear in your browser.

That brings you to the second problem: your newsletter is appearing without any images. The newsletter HTML expects a bunch of image files (with names like image-1.jpg, image-2.jpg, etc.) to be in the same folder as the HTML file, i.e. the presskit folder. But if you upload the images for both newsletters to that folder you'll have a new problem, as image-1.jpg for one newsletter issue will wipe out image-1.jpg for the other one.

The solution is to put each issue of the newsletter in its own folder. I suspect that each issue is in its own folder, along with all those image files, on your Mac. So instead of uploading just the HTML file, upload the entire folder. Then enter the folder, select the HTML file, and click WebView -- you should see the newsletter in your browser.